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AlphaXpress 8731 Sign Installation and Maintenance Manual (pn 1508610601 rev. A)
27
Controller #1 and #2
Figure 24.
Controller components identification.
Item
PCB label
Name
Description
A
JP7 TO JP11
Configures controller for RS422 on J6 for display modules (115.2 kbaud).
B
J6
RS485 PORT 1
• Controller #1 — connects to LED displays.
• Controller #2 — connects to light sensors #0, #1, and #2.
C
J5 A/INPUT
ANALOG INPUTS
Depends on application; see wiring diagram included with sign.
D
J4 D/INPUT
DIGITAL INPUTS
• Controller #1 — connects to power supply fail signals, and door status.
• Controller #2 — connects to power fail signals of power supplies.
E
S1
DIP SWITCHES
Serial addressing and sign controller configuration.
F
P1
RS232 PORT
RS232 COMM PORT 0 — not used because J3 is used.
G
JMP2 TO
JMP6
Configures controller for RS422 on J3 for communication between controllers.
H
J3
RS422 PORT
Used to interface both sign controllers together.
I
J2
DIGITAL OUTPUTS
Used to control beacons (when installed).
J
JMP1
Configures controllers for DC power.
K
J1
POWER
CONNECTOR
Connects to 12VDC power.
L
P4
RS232 PORT
Not used.
M
BAT1
CONTROLLER
BATTERY
3V lithium battery (Panasonic CR2032 or equivalent).
A
B
C
D
E
F
G
H
I
J
R
K
L
N
O
P
S
M
Q